Ata Akcil

Ata Akcil
T.C. Süleyman Demirel Üniversitesi | SDU · Department of Mining Engineering

Professor, PhD-PE
Group Leader, Mineral-Metal Recovery and Recycling Res. Group / Senior Expert, Critical Raw Materials&Resource Recovery

About

189
Publications
126,625
Reads
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5,981
Citations
Introduction
Ata Akcil (Professor) is a Head of the MMR&R Research Group, Engineering Faculty, SDU. He is also a member of Operational Group, Euro. Innov. Partnership on Raw Materials. R&DI areas: Critical raw materials, resource recovery, extractive metallurgy, circular&sustainable eng., primary&secondary resources, urban mining. He has published about 200 papers with 10,000 citations. h-index: 44, i10-index: 97 (Google Scholar, 2022). Web: www.ataakcil.com Email: ataakcil@sdu.edu.tr / ataakcil1@gmail.com
Additional affiliations
January 2017 - December 2021
European Commission
Position
  • Member of Operational Group, Euro. Innov. Partnership on Raw Materials
Description
  • Critical Raw Materials (CRMs), E-waste, Spent Battery, Urban Mining, Circular Economy, Waste Management, Resource Recovery.
April 2009 - present
ICMI
Position
  • Tech. Expert Auditor for Gold Mine Verification (ICMC)

Publications

Publications (189)
Article
a b s t r a c t Waste of electric–electronic equipment (WEEE) with an annual growth rate of about 3–5% is the fastest growing waste stream in municipal wastes. Notwithstanding their environmental pollution potential, waste of electrical and electronic equipment (WEEE) with their high content of base and precious metals, in particular, are regarded...
Article
Full-text available
Critical raw materials (CRMs) are essential in the development of novel high-tech applications. They are essential in sustainable materials and green technologies, including renewable energy, emissionfree electric vehicles and energy-efficient lighting. However, the sustainable supply of CRMs is a major concern. Recycling end-of-life devices is an...
Book
Full-text available
Critical and Rare Earth Elements: Recovery from Secondary Resources is aimed to compile the distribution of rare earth elements in various resources with their processing from secondary resources. It includes details of various processes developed for extraction of rare earth elements from varied raw materials ranging from e-wastes, tailings, proce...
Article
Full-text available
The pandemic has temporarily closed mines, factories and borders and destabilized flows of cobalt, lithium and more — metals that are crucial for batteries, wind turbines and solar panels.
Article
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The main purpose of this work was to investigate the effectiveness of oxalic acid as a reductant for the leaching of manganese and zinc from spent alkaline and zinc–carbon batteries in sulfuric acid or hydrochloric acid media. Three different types of battery powders were tested: zinc–carbon, alkaline and mixed (50% zinc–carbon, 50% alkaline). Kine...
Article
The results of studies on the processing of gibbsite-kaolinite bauxite are presented. The developed technology includes preliminary chemical activation and thermal transformation during enrichment to obtain a concentrate suitable for processing by the Bayer method. As a result of the chemical activation of gibbsite-kaolinite bauxite in a solution o...
Presentation
Full-text available
The "Mineral-Metal Recovery and Recycling (MMR&R)" research group at Suleyman Demirel University (SDU), Turkey functions as an inter & multidisciplinary research group performing R&D works, analysis, consultancy along with training on mine waste and recycling of industrial waste, which ultimately contribute to a healthy community and environment. T...
Article
Digitalization with technologies such as the Industry 4.0 revolution and the Internet of Things requires our resources and economies to be circular. All countries, especially the European Union agree that responsible consumption, production and recycling of critical raw materials are essential as a means of achieving sustainable development goals....
Article
In the present study, a sustainable production of boric acid from colemanite mineral and sulfuric acid was investigated, considering waste treatment and colemanite mineral processing costs. The purchasing price of sulfuric acid and the selling price of boric acid obtained from the market were used as $50/t and $900/t, respectively, to perform the s...
Article
Full-text available
Significantly unexploited red mud contains 0.5–1.7 kg/ton of rare earth metals (REMs) and 14–45% Fe, 5–14% Al, 1–9% Si, 1–6% Na, and 2–12% Ti which is currently being stockpiled. Reasonably, the red mud can be a suitable secondary resource of REMs, and other valuable metals, if not for the contained base metals. Stockpiled red mud locks down these...
Article
Mineral biotechnological applications e.g. bioleaching and bio-beneficiation, for waste treatment and resource recovery have invited due attention owing to their economic and eco-friendly benefits in comparison to the conventional methods. Although research has progressed well, there are several aspects that are still not well understood and requir...
Article
Developed economies such as the USA and European Union (EU) have classified antimony as a critical raw material. China leads the global antimony production (67% on an average from 2015 to 2019) followed by Russia and Tajikistan. Antimony has been applied in the industry (plastics, etc.) and new/emerging technologies (cell panels, infrared, etc.) wh...
Conference Paper
Full-text available
As a result of separation of a fine fraction of gibbsite-kaolinite low-quality bauxite from the Krasnogorsky deposit, it is possible to increase its silicon module. When bauxite is chemically activated in a solution of sodium bicarbonate, the fine fraction is effectively separated from the large one and the phase composition changes – the calcium s...
Article
Full-text available
There is a growing interest in electronic wastes (e-wastes) recycling for metal recovery because the fast depletion of worldwide reserves for primary resources is gradually becoming a matter of concern. E-wastes contain metals with a concentration higher than that present in the primary ores, which renders them as an apt resource for metal recovery...
Article
The choice of an appropriate method for rare earth element (REE) preconcentration from industrial by-products is a very difficult task. Most of the REE separation reviews focus on liquid extraction methods, whereas sorption processes are usually mentioned in connection with chromatographic individual REE separation. Limited information is currently...
Article
Of late, sustainable energy development has received considerable importance throughout the world due to the growing concerns regarding climate change and environment protection. This in turn, has led to the search for alternatives, which are ecofriendly and cost-effective. Turkey possesses vast resources of lignite and renewable energies, which if...
Article
Full-text available
The known methods of processing low-quality bauxite have a number of disadvantages that make it difficult or impossible to use them in the conditions of production of JSC "Aluminum of Kazakhstan", therefore, it is necessary to effectively develop a technology for preliminary enrichment. Enrichment of low-quality bauxites is possible by separating t...
Cover Page
Full-text available
Obituary Professor Zinesh Abisheva (1947-2021)
Article
The growing demand for rare earth elements (REEs) confronted with a parallel supply risk, draws major interest to utilize secondary resources bearing higher REE content than the primary resources. The European Commission has recently identified bauxite as a Critical Raw Material (CRM). In particular, unexploited bauxite residues have invited due at...
Article
The global demand for rare earth elements (REEs) with respect to hi‐tech applications is on a constant rise; however, their supply is a matter of concern. To the rescue, the urban wastes e.g. the consumer electronic scraps (CE‐Scraps) are seen to have a remarkable potential to meet the growing demand for metals. In line with the circular economy pr...
Article
Bioleaching of copper from electronic waste (e-waste) in the form of high grade waste printed circuit boards (WPCBs) collected from obsoletemobile phones is assessed using a consortium of iron (Fe2+) & sulphur (Sº) oxidizing bacteria in a semi-pilot reactor system. Results from the study indicated that the microorganisms were able to grow in the pr...
Article
Globally many countries face major socio-economic and political challenges that include climate change, energy supply and availability of critical resources. Metals are essential to the products and modern technologies that will allow all economies (either developed or developing), a transition into the low carbon future. Technology metals, that in...
Article
Abstract Waste electrical and electronic equipments (WEEE or e-waste) are an important source for rare earth elements (REEs). Among various type of WEEE, NdFeB magnets are known for their high content of neodymium (Nd) and dysprosium (Dy). Recovery of REEs from NdFeB magnets is of prime interest for the industry to meet the ever-growing demand for...
Article
Agricultural, domestic and industrial activities contribute in releasing several organic and inorganic substances into the water streams that result in environmental pollution. Biological treatment of industrial and domestic wastewater using Activated Sludge Nutrient Removal (ASNR), the conventional process, is well known; however, it is relatively...
Cover Page
Full-text available
Professor Ata Akcil was among the most influential scientists in the world (July 2020). RANK: 22nd runner globally and 1st runner in Turkey.
Article
The present study was conducted to carry out bioleaching of waste mobile phone printed circuit board (WMPPCB) in a high redox potential-controlled fed-batch process compared to the low redox potential batch process. Concomitant additions of WMPPCB achieved high redox potential bioleaching of WMPPCB. The pH of the bioleaching slurry was maintained a...
Article
BACKGROUND: The waste printed circuit boards (WPCBs), today, offer a wide array of metals and are of great importance because their metal concentration is much more than that in the ores. Largely, studies have been devoted to Cu bioleaching from WPCBs because it has the highest ratio among all metallic elements ( ̴ 10-30%). In the present study, an...
Article
Full-text available
Removal of impurities (iron in particular) from quartz using aqueous chemical processes is important for its potential use in many industries including detergent, ceramics, paint, refractory, metallurgy and, in particular, glass and electronic industries to fulfill the desired requirements by these industries for high quality quartz as raw material...
Article
Full-text available
In the contemporary world of high technologies lithium (Li) is a key component. Kazakhstan has the required potential for its production. The most attractive raw materials for lithium extraction are natural and saline lake brines. Investigation and search of new technological solutions with the purpose of inclusion thereof in the sphere of lithium-...
Article
Waste an E-waste is a global environmental issue but potential resources for Indium through urban mining and recycling, which a critical raw material for the industry has been reviewed. In the e-waste, the computer followed by spent television scarp is the second highest by volume generation invariably contains the LCD panel. Indium-tin-oxide (ITO)...
Article
The present study investigates the influence of ferrous iron (as FeSO4) and ferric iron (as Fe2 (SO4)3), and pyrite (FeS2) on the ability of bacterial leaching of a high-grade sulfide Zn–Pb ore. In this regard, shake flask experiments were carried out at 5% (w/v) pulp density of the ore sample (having 40.7% Zn and 12.4% Pb initial metal content) us...
Article
Full-text available
Waste electrical and electronic equipment (WEEE) contains economically significant levels of precious, critical metals and rare earth elements, apart from base metals and other toxic compounds. Recycling and recovery of critical elements from WEEEs using a cost-effective technology are now one of the top priorities in metallurgy due to the rapid de...
Article
This paper presents the application of an artificial neural network (ANN) in order to predict the effects of operational parameters on the dissolution of Cu, Mo and Re from molybdenite concentrate through meso-acidophilic bioleaching. The initial pH, solid concentration, inoculum percent and time (days) were used as inputs to the network. The outpu...
Article
Full-text available
Küresel ekonomideki dalgalanmaların en önemli tetikleyicilerinin başında, hammadde tedariğinden dolayı, madencilik sektörü gelmektedir. Bu durum, aynı zamanda, madencilik sektörünü kamuoyu gündeminde tartışmaların arttığı bir konuma oturtmaktadır. Ülkemizde olduğu gibi, küresel anlamda da madencilik sektörü içinde İş Sağlığı ve Güvenliği tedbirleri...
Conference Paper
Full-text available
Recycling of WEEE has already gain prime importance from both environmental and economic point of view. For the recovery of metals from e-waste, many conventional physical, bio/hydrometallurgical and pyrometallurgical processes are proposed. Economic potential of e-waste is mainly driven by its precious metal content. Physical separation methods (e...
Chapter
In this chapter, we discuss the use of constructed wetlands (CWs) for treating Acid Rock or Acid Mine Drainage (ARD or AMD). This review, rather than being fully extensive, focuses on the chronology of the use of CWs for treating different types of acidic drainage and the success and failures of these systems. The chapter also presents a fairly det...
Article
Full-text available
Phosphorus slag is the most heavy-tonnage waste of yellow phosphorus production, which is stored in the dump fields for many years causing ecological problems in the regions. One of the relevant and priority directions is rare-earth metals (REMs) production, presence of which in the phosphorus slags allows considering the latter as an acceptable ra...
Article
Full-text available
Bio-hydrometallurgical applications have been receiving more attention globally for processing of several metal bearing wastes. Compared to the conventional methods, bioleaching has proved to be a more effective way in treating low-grade ores, due to its economic and ecofriendly advantages. Developments in bioleaching enables this technique to be u...
Article
The paper provides an overview of the methods used for processing of red mud to extract rare earth elements (REEs). Red mud is a toxic and highly alkaline waste. Several methods have been adopted and being practiced all over the world for the processing of red mud. Complex processing of red mud is cost-effective since red mud contains iron, aluminu...
Article
Turkey is a country with vast lignite reserves, which can serve as a potential source of energy to meet the rising energy demands. However, the sulphur present in coal delimits its application in several sectors. Recently, various techniques have emerged for sulphur removal from coal. In the present study, the efficacy of Rhodococcus erythropolis D...
Article
Acid mine drainage (AMD) is a major environmental problem and remains so despite the availability of a vast array of remediation techniques and technologies. Many methods used to remediate AMD are limited in implementation due to poor performance, design inaccuracies, difficult understanding of functionality, high costs, usage of hazardous chemical...
Article
Coal has been serving as a profuse source of energy since centuries and several attempts are being made to reduce sulphur emission levels from coal. Recently, pretreatment techniques such as ultrasonication and utilization of surfactants as additives have surfaced aiming at improving the biodesulphurization of coal. In the present study, biodesulph...
Article
The low rank coal lignite stands out to be a profuse source of energy in Turkey and accounts for nearly 43% of its total fossil fuel production. However, the high sulfur content associated with lignite averts its application in several sectors due to various health and environmental issues. In the present work, biodesulphurization of Turkish lignit...
Article
Full-text available
The present study is devoted to the extraction of rare-earth metals (REMs) from a high-silica ore found in one of the deposits in Kazakhstan. The total content of rare-earth elements (REE) in the ore was found to be 340 ppm. The ore and the silicon-containing cake were studied using a scanning electron microscope (SEM) and XRD analysis. The Gibbs e...
Article
Simultaneous multi-metal leaching from industrial pyrite ash is reported for the first time using a novel bioreactor system that allows natural diffusion of atmospheric O2 and CO2 along with the required temperature maintenance. The waste containing economically important metals (Cu, Co, Zn & As) was leached using an adapted consortium of meso-acid...
Book
Municipal Councils in the G20 Countries including Turkey
Article
The present research is directed to processing of slag originating during the yellow phosphorus production. Slag was investigated using a complex of physical and chemical treatment methods. The presence of the following elements of rare earth group in phosphorus slag was identified as: Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Ho, Tm, Yb, Lu. Thermody...
Article
Pyrite ash, a waste by-product formed during roasting of pyrite ores, is a good source of valuable metals. The waste is associated with several environmental issues due to its dumping in sea and/or land filling. Although several other management practices are available for its utilization, the waste still awaits and calls for an eco-friendly biotec...
Article
Full-text available
The bottom ashes, produced by the industrial incinerators, are an essential secondary raw material resource which has been drawing attention to recover economically important metals. In the present study, a hydrometallurgical process (chemical leaching) has been discussed to recover some economically important metals using lab scale reactors (600 m...
Article
Acidophilic S-oxidising bacteria isolated from sulphur-rich deep caves (Frasassi, Italy), characterised by relatively low temperature, were tested for their ability to mobilise (semi-)metals from contaminated sediments. Sediment samples from two commercial Italian seaports were used to set up bioleaching experiments. The effect of different growth...
Article
Acid mine drainage (AMD) is recognised as a serious and global environmental problem. The major producer of these toxic effluents is the mining industry. Owing to the severe effects of these effluents, their prevention and treatment have been a primary focus of research over several decades. The problems have invited the attention of a large group...
Article
Full-text available
The present research is devoted to the processing of slag generating during the yellow phosphorus production. In this paper are presented studies on leaching of phosphorus production slag by nitric acid with recovery of rare earth metals (REMs) into solution. REMs recovery into the solution achieved 98 % during the leaching process with using 7.5 m...
Article
Full-text available
The cyanidation process has been, and still remains, a profitable and highly efficient process for the recovery of precious metals from ores. However, this process has contributed to environmental deterioration and potable water reserve contamination due to the discharge of poorly treated, or untreated, cyanide containing wastewater. The process pr...
Article
In the current era, the alarming rate at which coal is being burned as a fuel is causing concern with regard to the release of sulphur oxides. According to reports, global coal consumption has increased by 0.4% in 2014. While countries like UK, Ukraine etc. have witnessed a decline in coal consumption, some others like India, China, Africa and Nort...
Article
Full-text available
Iron, the predominant impurity in quartz ores, can be substantially removed via aqueous chemical processes using organic and inorganic acids. Quartz was highly purified by leaching with sulfuric acid (H2SO4) in the presence of reducing agents (oxalic acid, citric acid, and glucose). The effects of the parameters in the leaching tests were evaluated...
Article
The pyrite ashes formed as waste material during the calcination of concentrated pyrite ore used for producing sulphuric acid not only has a high iron content but also contains economically valuable metals. These wastes, which are currently landfilled or dumped into the sea, cause serious land and environmental pollution problems owing to the relea...
Article
Catalysts are used extensively in industry to purify and upgrade various feeds and to improve process efficiency. These catalysts lose their activity with time. Spent catalysts from a sulfuric acid plant (main elemental composition: 5.71% V2O5, 1.89% Al2O3, 1.17% Fe2O3 and 61.04% SiO2; and the rest constituting several other oxides in traces/minute...
Chapter
Full-text available
Several proven and effective chemical, physical and biological treatment processes have been developed for the removal and recovery of cyanide from mill tailings and process solutions. These treatment processes are well understood and have been utilized for years at mine sites worldwide. The purpose of this chapter is to provide background informat...
Article
The thermodynamic equilibria and kinetic aspect of gold dissolution in iodine–iodide leaching were studied with emphasis on the effects of pH value and temperature on the system. The results of thermodynamic analysis of iodine in aqueous solution were given and numerous forms of iodine exist mainly in the acid region of pH values. An increase of th...
Article
Waste generated by the electrical and electronic devices is huge concern worldwide. With decreasing life cycle of most electronic devices and unavailability of the suitable recycling technologies it is expected to have huge electronic and electrical wastes to be generated in the coming years. The environmental threats caused by the disposal and inc...
Article
With the increase in environmental awareness, the disposal of any form of hazardous waste has become a great concern for the industrial sector. Spent catalysts contribute to a significant amount of the solid waste generated by the petrochemical and petroleum refining industry. Hydro-cracking and hydrodesulfurization (HDS) catalysts are extensively...
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Article
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In this study, cyanidation experiments on massive sulfide sample was investigated. The grade of precious metals (Au and Ag) in the ore are 4.2 g/t and 311.9 g/t. Also, the average grade of other elements are As-1751.6, Sb-619.7, Zn-781.4, Cu-454.6, Pb-101.8, Hg-324.3, and Bi-0.6 (all assays are in g/t). The first objective of test work focused on t...
Article
Chalcopyrite is the primary copper mineral used for production of copper metal. Today, as a result of rapid industrialization, there has been enormous demand to profitably process the low grade chalcopyrite and "dirty" concentrates through bioleaching. In the current scenario, heap bioleaching is the most advanced and preferred eco-friendly technol...
Article
Dumping of poor but metal containing industrial waste is associated with several environmental issues. Exposure of these wastes to the natural environment offers serious concerns for the mineral processing industries to utilize them for metal recovery and check environmental pollution. In the present study, a novel sequential bioreduction-bioleachi...
Article
Gold is one of most important sources of currency entry in the economics of any state. Besides mining raw materials, fit for effective gold extraction, residues of gold extraction factories are the source of this precious metal. Moreover, the role of industrial wastes, which has a rich source of non-ferrous and noble metals, increases. Processing e...
Cover Page
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Dergi Yayınlarında Bilimsel Kalite ve Seçicilik: “Cevher Hazırlama” Örneği
Article
In this study, the recovery of gallium (Ga) and aluminum (Al) from the by-product of Bayer process, the electrofilter dust of a calcination plant, was studied. Factorial leaching tests were also designed based on the results of the preliminary tests. Effects of factors and their interactions on the extraction of Ga and Al were demonstrated using An...